Verified Solution • 2025–26 Session moderate

QJEEM23Phc803: JEE Main 2023 Physics - Class 11 JEEM23Phc803 Solution: A force acts for 20 s on a body of mass 20 kg, starting from…

A force acts for 20 s on a body of mass 20 kg, starting from rest, after which the force ceases and then body describes 50 m in the next 10 s. The value of force will be:

Multiple Choice Options

  • A 40 N
  • B 20 N
  • C 5 N
  • D 10 N

Step-by-Step Verified Solution

m=20 kg

t=20 sec.

Acceleration =F20 m/s2

∴ v=u+at

v=0+(F20)(20)

=F ms−1

Now for next 10 sec.

S=ut

50=F(10)

F=5

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